I agree with Jim. You can contact the Warranty Department at Toyota's North America HQs in Torrance, California for the process for having it troubleshoot and repaired/replaced in Canada. I believe they look for unusual warranty problems and three successive ECMs failures should qualify. In parallel, you might consider posting the ECM failure code on TW's Technical Chat forum and see if anyone else has experienced the same problem and how it was remediated. It has been my experience that some dealers try to avoid complex warranty issues because that will not be able to recoup their expenses or hassle. The salaried manufacturer's reps love a new challenge.

It is possible. I've "seen" where long tube installs, O2 simulator installs, and even a heavy rain have caused this code. So I might think that maybe a voltage spike or flucuation tripped out the ECM for a second. I'd fix the starter cable, reset the ECM (leave the battery disconnected which should be done when working on the starter), then go from there.

This seems to be an ongoing problem, one definition of insanity is doing the same thing over and over and expecting different results. Its not the ecm!

If this is the third ecm, two of them covered under warranty then I'd be asking Toyota to replace this one under warranty also or give me a reason why its your fault that they are failing! Something is wrong with the vehicle to cause this to happen. US has a lemon law and I think this would definitely fit the criteria, a major problem that they can't fix after multiple attempts. If the dealer won't help call directly to Toyota Canada.

Jim

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I agree with contacting Toyota. They may not do anything at all, but the only way that they WILL do something is if you ask. As for Lemon Law, it only applies to original owners. It does not apply to a second or consecutive owner.

just looked at the truck and main wire to starter broke off ,would this cause the ecm code p0606 to come on????

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I would say this qualifies as a likely suspect to investigate ....

The code could be getting thrown during the starting process due to the poor connection and feedback to the ecm while starting. If the truck still seems to run fine after starting it is not likely the ecm bad I wouldn't think.

That wire working loose could have been happening over time and the previous dealer techs just never noticed it. I am just guessing here.